Tension device.



G. H. GOLDSMlTH.

TENSION DEVICE.

APPLICATION FILED MAR. 15. 1917.

1,260,662. Patented Mar. 26, 1918.

GEORGE E. GOLDSMITH, OF GREENVILLE, SOUTH CAROLINA.

TENSION DEV 'ICE.

Application filed March 15, 1917. Serial No. 154,997.

To all whom it may concern:

Be it known that I, GEORGE H. GOLD- SMITH, a citizen of-the'United States, re-

siding at Greenville, in the county of Green- 'ville and State of South-Carolina, have 1nvented certain new and useful Improve ments 1n Tension Devices, of which the following 1s a speclfication.

My invention relates to tension devices adapted for use upon 'spoolers and other textile machines requiring atension dev ce. The essential objects ofmy invention are to enable the application of the yarn or thread thereto automatically by the ballooning of the'thread during the winding; to insure a uniformity and exactitude of stress or tension upon the yarn or thread; to render it possible, by substitution of various sized devices, to modify the tension;

to prevent the accidental escape from the device of the thread coils; to prevent wear; to insure against accumulation of dirt; to

definitely limit and determine the numberof wraps of yarn around the core or post; and to attain these ends-in an inexpensive device, and one adapted to facile attachment to any construction of machine.

To the above ends essentially my invention consists in such parts and in such combinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this application Figure 1 is a front elevation of my device and. portions of parts adjacent thereto including the upper end of a cop or bobbin and the lower portion of a spool, and

Figs. 2 and 3, show the device in side and plan elevations respectively.

Like reference characters indicate like parts throughout the views.

In the present instance, my device is shown in conjunction with portions of the spool stand 5, thread guide rod 6, clamp 7, cop or bobbin 8 and spool 9.

The tension device is preferably formed from a wire or rod by bending, so that the device is an integral whole of maximum strength and freedom of irregularities. It comprises a vertical rod or core 10 whose upper end, in this'instance, constitutes a horizontally disposed, angularly or radially turned stop finger 11.

At the inner end or bottom of the post 10, the material forms a resultant vertical loop 12' in the formation of a series of, in

Specification of Letters Patent. Patented Dial. 26, 1918. i

this instance two, helices or coils 13 and 14:, I

spaced from each other and from the rod or core 10 with which the coils are concentric. These coils constitute in effect a surrounding or exterior member 15, and the spaces between the coils define the number of turns of the yarn upon the rod 10. The outermost coil 14 terminates some distance below the finger or stop 11 and projects laterally beyond the exterior member forming a horizontal supporting arm 17 disposed at an angle to portion 11. The arm 17 is, in this instance, carried by the clamp 7 which engages the rod 6, and which carries the yarn guide, not shown, when it is desired to employ a guide. The arm 17 is consequently below and parallel with the rod (5, and the device is in the path ofthe twisting yarn 19 traveling from the bobbin 8 to the spool 9.

Either by ballooning or manually the yarn 19, assuming a position similar to that shown in broken lines, first contacts with the arm 17 and is guided by its curved end portion into and between the coils of the member 15. The yarn. however, as it initially enters the coil 14 from the rod 17, contacts with the stop finger or arm 11. The motion of the yarn and shape of the coils effect a wrapping or winding of the same around the rod between the coils; the num-. ber of turns being determined by the number of coil spaces. After the yarn has thus been wrapped upon the post, it is maintained against escape from the outer end of the rod by the member 11. The vertical loop 12, which constitutes a resultant shoulder, assists to control and retain the yarn from escaping from the bottom of the device, and without interfering with its Vertical travel.

It will be observed therefore that the rotary movement of the yarn in ballooning.

I claim 1. A tension device comprising an interior member presenting an outer friction surface around which yarn may be wrapped withone or more turns and thereby retarded during the running of the yarn, and an exterior member loosely enveloping said interior member with a series of s aced coils adapted to define in a precise an determinate manner the number of turns of the yarn around said interior member upon the application of the yarn thereto.

2. A tension device comprising an interior member resenting an outer friction surface around w ieh yarn may be wrapped with one or more turns and thereby retarded during the running of the yarn, said member having a stop at the outer end thereof for holding the turns of yarn thereon, and an exterior member loosely enveloping said interior member and extending around the same with a series of spaced coils connecting with the inner end of said interior member.

3. .A tension device comprisin an interior member presenting an outer riction surface around which yarn may be wrapped with one or more turns and thereby retarded during the running of the yarn, and an exterior member extendin around said interior member and exten ing longitudinally thereof with a series of s aced COIlS adapted to define in a precise an determinate manner the number of turns of the yarn around said interior member upon the application of the yarn thereto, one of said members being provided with an outwardly extended arm for directing the yarn between said coils.

4. A tension device comprising an interior member presenting an outer friction surface around which yarn may be wrapped with one or more turns and thereby retarded during the running of the yarn, a lateral stop upon said member for retaining the turns of yarn thereon, and an exterior member conof yarn thereon and an exterior member extending around said interior member with a series of spaced coils and connecting with the inner end of said interior member, said exterior member having also an outwardly projecting arm for directing the yarn between its coils.

6. A tension device comprising an interior member consisting of a rod havlng a lateral stop upon its outerend, and an exterior member comprising a series of spaced coils surrounding said rod longitudinally thereof and connecting with the inner end thereof.

7. A tension device comprising an interior member consisting of a rod having a lateral stop upon its outer end, and an exterior member consisting of a series of longitudinally disposed spaced coils surrounding said rod and connecting with the inner end thereof, said exterior member being provided with an outwardly projecting arm upon the outermost coil.

8. A tension device comprising an interior member, a series of longitudinally disposed coils surrounding said member, a loop connecting the series of coils with one.end of said member, and an arm continuous with one end coil of the series.

In testimony whereof I have aflixed my signature.

GEORGE H. GOLDSMITH. 

